Bag-fastener.



.PATBNTED DEC. 13, 1904.

S BJARNASON BAG FASTENER. APPLIQATIMI FILED mm: 2, 1904.

NO MODEL.

WITNESSES:

ATTORNEYS NTTE STATES Patented December 13, 1904,

PATENT OEEIcE.

BAG-FASTENEW.

SPECIFICATION forming part of Letters Patent No. 777,367, dated December 13, 1904.

A li ati n fil d June 2, 1904. Serial No. 210,792. (No model.)

To all whom it may concern.- 4

Be it known that I, Sreuan BJARNASON, a subject of the King of Denmark, and a resident of Winnipeg, in the Province of Manitoba and Dominion of Canada, have invented a new and Improved Bag-Fastener, of which the following is a full, clear, and exact description.

This invention has for its object to provide a bag-fastener of novel construction which is adapted for the quick and reliable closure of the mouth of a bag or sack, dispensing with the use of cords or the like for such a purpose.

The invention consists in the novel construction and combination of parts, as is hereinafter described, and defined in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective view showing the application of the improved fastener upon the neck or mouth portion of a bag for its closure. Fig. 2 is a plan view of the improved fastener, showing its closed adjustment by full lines and one member thereof opened by dotted lines. Fig. 3 is an edge view of the device; and Fig. f is an enlarged, partly sectional, plan View of the improved fastening device, showing novel details of construction therefor.

The improved bag-fastener is in the form of a clasp having two nearly similar members 5 and 6, that are flat and of an equal thickness, each having parallel sides. The clasp members 5 and 6 are curved edgewise, are substantially semicircular, and are arcs of circles that slightly differ in diameter. Upon like ends of the clasp members 5 6 circularlyedged enlargements ca are formed, these enlargements affording joint-leaves that have lapped engagement with each other, and, as shown in Fig. 3, one enlargement, a, is longitudinally slotted at its center of thickness to receive the other enlargement, a, which is of reduced thickness, and when in neat-fitting engagement within the slotted member the two enlargements are pivoted together at their centers, as at 6, thus afiording a strong hinged connection between the clasp members 5 and 6. The slight difi'erence in diameter of the arcs of thecircles represented by the substantially semicircular clasp members 5 and 6 adapts the member 6, that is of the greatest interior diameter, to pass freely over the ex terior edge surface of the other clasp member, 5, as is indicated in Fig. 2.

Upon the peripheral edge of the hinge-leaf a, that is held between the slotted enlargement (4, a series of teeth a is formed upon a portion of said edge that is adjacent to the clasp member 5, whereon a stout spring-pawl 7 is secured by one end, the free end of the spring-pawl being engaged between two adja cent teeth 0, which engagement of the pawl and teeth serves to lock the two clasp members 5 and 6 from divergence until the pawl is removed from the teeth.

In the body of the clasp member 5, near the slotted enlargement or leaves a thereon, a recess (Z is formed that opens on the outer edge of said clasp member, and in the recess (Z one end of a lever 8 is inserted and pivoted, as indicated at e. The body of the lever 8 is longitudinally slotted, and through said slot (7 the pawl 7 is loosely inserted near its end, that serves as a toe for interlocking engagement between the teeth 1;, said lever by pressure of the spring being inclined toward the teeth, as is clearly shown in Figs. 2 and 4.

To prevent the clasp members 5 and 6 from slipping on the folds A, formed on the neck of the bag A by the closure of its mouth portion, the-concave inner edges of said clasp members are preferably rendered undulating,

thus producing slight projections 7:, thereon, which by their embedmeut serve to prevent a lateral slip of the bag material through the clasping members 5 and (3 when they are properly clasped on the bag. Projecting from the outer edges of the clasp members are cars m, which aflord abutmcnts for the lingers in closing the clasp upon the neck of a ba To apply the fastener upon a nearly-lilled bag or sack, the unfilled neck of the bag near its open end or mouth is engaged by the opened members 5 and 6, to effect which they are first diverged, as shown in Fig. 2 by dotted lines. Pressure is now applied edgewise upon the clasp members 5 and 6 and against the ears m, which will slide the end portion of the member 6 over a like portion of the member 5, and so contract the space between said clasp members that the mouth of the bag or sack A will be securely closed and will remain so until the bag-fastener is released th erefrom.

Upon the inner edge of the resilient pawl 7 a slight abutment-ear 2 is formed at a suitable distance from the toe of the pawl, this projection or ear having contact with the edge of the slot 9 in the lever 8 when the lever is rocked away from the teeth a, and it will be seen that to release the pawl from the teeth it is only necessary to pull the lever in the direction of the arrow 00 in Fig. 4.

In the clasp member 6 at a suitable distance from the hinge-joint a perforation n is formed, wherein one end portion of a securing-cord 9 is inserted and fastened by any suitable means, the other end of the cord being attached to the bag, the cord serving to prevent loss of the clasp when not in use or when temporarily released from the neck of the bag to remove its contents.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A bag-fastener, comprising two curved clasp members pivoted together at corresponding ends, a hinge-leaf on one member having teeth on its edge, a pawl having a spring-body and held by one end on the other member so that its resilient body may engage the toe thereof between adjacent teeth, and means for disengaging the toe of the resilient pawl.

2. A bag-fastener, comprising two clasp members having concaved inner edges, pivoted together at corresponding ends, the hingeleaf on one member having a plurality of teeth formed concentric to the pivot, a resilient pawl secured by one end on the other clasp member having its free end or toe meshed between adjacent teeth, and a lever held to rock on the clasp member that bears the pawl, said lever being adapted by rocking movement to lift the free end of the pawl.

3. A bag-fastener comprising two clasp members flat on their sides, corresponding ends of the clasp members having enlarged circularly-edged joint-leaves that are pivoted together, forming a hinge-joint, a series of teeth formed on the outer edge of the hingeleaf on one clasp member, a pressed springpawl on the outer edge of the other clasp member, the toe on which is adapted for engagement between two teeth of the series for holding the clasp members compressed toward each other, and a lever pivoted by one end on the clasp member carrying the pawl, said lever having a slot through which the pawl is inserted, a rocking movement of the lever releasing the toe of the pawl from the teeth it engages.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SIGURD BJARNASON.

Witnesses:

ALEX MoMILLAN, SAM. H. SHANK. 

